userbean.java

《Java网络程序设计.rar》包括三个网络程序的源代码。

/*
 */

package org.impact.stars.organizationmd.user.ejb;

import java.util.Collection;
import java.util.Locale;
import java.rmi.RemoteException;
import javax.rmi.PortableRemoteObject;
import javax.naming.InitialContext;
import javax.ejb.DuplicateKeyException;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.RemoveException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.FinderException;

import org.impact.stars.organizationmd.stakeholder.model.StakeholderModel;

import org.impact.stars.organizationmd.stakeholder.ejb.StakeholderLocal;
import org.impact.stars.organizationmd.stakeholder.ejb.StakeholderLocalHome;
/*
import org.impact.stars.organizationmd.stakeholder.exceptions.StakeholderAppException;
import org.impact.stars.organizationmd.stakeholder.exceptions.StakeholderAppLongIdException;
import org.impact.stars.organizationmd.stakeholder.exceptions.StakeholderAppInvalidCharException;
*/
import org.impact.stars.organizationmd.user.exceptions.UserAppLongIdException;
import org.impact.stars.organizationmd.user.exceptions.UserAppInvalidCharException;
import org.impact.stars.organizationmd.user.exceptions.UserAppException;
import org.impact.stars.util.JNDINames;
/**
 * Session Bean implementation for UserEJB EJB. The user is a run time 
 * instance of a user login
 */
public class UserBean implements SessionBean {

    StakeholderLocalHome stakeholderHomeRef = null;
    SessionContext context = null;

    /**
     * Constructor - does nothing
     */

    public UserBean() {}

    /**
     * Sets the session context
     * @param sc the <code>SessionContext</code> for this instance
     */
    public void setSessionContext(SessionContext sc) {
        this.context = sc;
    }

    private void getReferences() {
        try {
            Object objref;
            InitialContext initial = new InitialContext();
                if(stakeholderHomeRef == null) {
                    objref = initial.lookup(JNDINames.STAKEHOLDER_EJBHOME);
                    stakeholderHomeRef = (StakeholderLocalHome)
                    PortableRemoteObject.narrow(objref, StakeholderLocalHome.class);
                }
                
        } catch (javax.naming.NamingException ne) {
            throw new EJBException ("Naming Ex while getting facade " +
                                    "references : " + ne);
        }
        return;
    }

    /**
     * the ejbCreate methods that just gets the references
     */
    public void ejbCreate() {
        getReferences();
    }

    /**
     * the ejbRemove methods that does nothing
     */
    public void ejbRemove() {
    }

    /**
     * the ejbActivate methods that just gets the references
     */
    public void ejbActivate() {
       getReferences();
    }

    /**
     * the ejbPassivate methods that resets the references
     */
    public void ejbPassivate() {
        stakeholderHomeRef = null;
      //  orderHomeRef = null;
    }

    /**
     * Gets the stakeholder details give an user id
     * @param userId a string that represents the user Id
     * @return the <code>StakeholderModel</code> that has the stakeholder information
     *         corresponding to a customer's stakeholder.
     * @throws <code>RemoteException</code> for irrecoverable errors
     * @throws <code>FinderException</code> if the user details was not found
     */
    public StakeholderModel getStakeholderDetails(String userId) throws
                                   RemoteException, FinderException {
        try {
           if(stakeholderHomeRef == null)
               getReferences();
           StakeholderLocal stkhdr = stakeholderHomeRef.findByPrimaryKey(userId);
         return(new StakeholderModel(stkhdr.getFirstName(), stkhdr.getLastName(), stkhdr.getGroupId()));
        } 
            catch (FinderException fe) {
             throw new FinderException(fe.getMessage());
             }
    }
}